The digital thermometer refrigerator of the company TFA helps you control and ensure the temperature of your refrigerator at the degrees it should be. The temperature of a refrigerator should be maintained at 4° C or less, and a freezer at -18° C. The best place to place a thermometer is in the warmest point of a refrigerator, which is near the door and not at the back, while the ideal place for the freezer is the center, without the thermometer coming into contact with ice or frozen food.